Combined Defense Service (CDS) exam is organized twice in a year by Union Public Service Commission (UPSC) of India for the purpose of recruiting eligible candidates into the three armed forces of our country. This exam provides a great opportunity for the youngsters who have a great passion for being a soldier. There are three levels of screening. There will be an objective test in the first level and a group discussion in the second level and a face to face interview in the final level. One who comes out successfully after these three levels will get a great opportunity to serve our country. The details of the exam are as follows.

Syllabus for Combined Defense Service Exam

The Combined Defense Service Exam consists of three papers including Elementary Mathematics, General Knowledge and English. The standard of the questions will be of 10+2 level.

The important portions included in each paper are as follows.

General Knowledge

• General Awareness
• Geography of nature
• History of India
• Current Affairs
• Important Days
• Important Events

English

• Use of Words
• Sentence Correction
• Fill in the Blanks
• Comprehension
• Synonyms and Anonyms
• Sentence Rearrangement
• Grammar
• Vocabulary

Elementary Mathematics

• Algebra
• Arithmetic
• Geometry
• Trigonometry
• Statistics
• Rational and Real numbers
• Addition
• Subtraction
• Multiplication
• Division
• Square roots
• Unitary method
• Time and work
• Percentages
• Profit and loss
• Multiples and factors
• Use of logarithmic tables
• H.C.F., L.C.M.
• Solutions of quadratic equations
• Relation between its roots and coefficients
• Set language and set notation
• Use of trigonometric tables
• Lines and angles, Plane and plane figures
• Parallel lines
• Congruency of triangles
• Concurrence of medians and altitudes
• Areas of squares, rectangles, parallelograms, triangle and circle
• Surface area and volume of cuboids
• Surface area and volume of spheres
• Graphical representation
• Histograms
• Bar charts, pie charts etc.
• Intelligence and personality test

Question Pattern of Combined Defense Service Exam

The questions of the exam are of objective type format with multiple choices. The exam comprises of three papers including Elementary Mathematics, English and General Knowledge. Each paper consists of 100 questions of 2 hours duration. Each paper carries a total of 100 marks. There will be 4 choices given for each question. The candidate has to choose the correct answer from the choices given. For each correct answer the candidate will be awarded 1 mark. For wrong answers 1/3 marks will be deducted. If two answers are marked for the same question then that answer will be considered wrong and 1/3 marks will be deducted. The group discussion and interview comprises of a total of 300 marks.